CVE-2009-3627

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-10-29 · updated 2026-06-16
Weakness: CWE-20

Description

The decode_entities function in util.c in HTML-Parser before 3.63 allows context-dependent attackers to cause a denial of service (infinite loop) via an incomplete SGML numeric character reference, which triggers generation of an invalid UTF-8 character.

Affected products

Derrick Oswald Html-Parser: through 3.54; 1.00, 1.1, 1.2, 1.3, 1.4, 1.5 (+3)

References

http://github.com/gisle/html-parser/commit/b9aae1e43eb2c8e989510187cff0ba3e996f9a4c
http://secunia.com/advisories/37155
http://www.openwall.com/lists/oss-security/2009/10/23/9
http://www.securityfocus.com/bid/36807
http://www.vupen.com/english/advisories/2009/3022
https://bugzilla.redhat.com/show_bug.cgi?id=530604
https://exchange.xforce.ibmcloud.com/vulnerabilities/53941
https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6225
http://github.com/gisle/html-parser/commit/b9aae1e43eb2c8e989510187cff0ba3e996f9a4c
http://secunia.com/advisories/37155
http://www.openwall.com/lists/oss-security/2009/10/23/9
http://www.securityfocus.com/bid/36807

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